Tuyere for furnaces



(No Model.)

F. W. GORDON.

TUYERE FOR FURNAGE$. I

" N0.'253,52'7. Patented Peb.14, 1882.

WITNESS s. M W fi VJNVENTOR W24 7 [n1 v 3mm ur. %a& ATTORNEY UNITED STATES PATENT OFFICE.

FREDERICK \N. GORDON, OF .PITTSBURG, PENNSYLVANIA;

TUYERE' FOR FuaNAces.

SPECIFICATION forming part of Letters Patent No. 253,527, dated February 14, 1882. Application filed August 8, 1881. (No model.)

To all whom it may concern Be it known that I, FREDERICK W. Gon- DON, of Pittsburg, Allegheny county, Pennsylvania, have invented certain new and useful Improvements in Blow-Pipes for Blast-Furnaces, of which the following is a specification, reference being had to the accompanying drawings, in which- Figure l is a side elevation, and Fig.2 a plan, of the blow-pipe shown in connection with a portion of the bustle-pipe of a furnace.

A represents the usual bustle-pipe.

The dotted line 13 indicates the exterior surface of the furnace-wall, in which wall are supposed to be set the usual tuyeres.

The otfice of a blow-pipe is to connect a tuyere with the bustle-pipe. The blow-pipe should be easily separable from'the furnace, and when it is in working position it should be somewhat yielding in character, so as to permit the movements resulting from expansion and contraction without opening any of the connecting-joints.

M is a neck attached tothe bustle-pipe. D is the bellypipe, connected to said neck by means of the ordinary ball-joint F, and having connected to it the tuyere-pipe U by means of the ball-joint E.

The working position of the structure is about as indicated in the drawings, Fig. 1,and it is obvious that as thus far described it would be maintained in position solely by the friction of the ball-joints, the obvious tendency of the pipe D being to flexate upon the axis of the ball-joint F and assume a vertical position, thus withdrawing the tuyere-pipe G from all connection with the furnace.

L is a lug attached to the belly-pipe D. This lug in reality forms a lever whose pivot-axis is coincident with the axis of the ball-joint F.

G is a lug attached to the bustle-pipe A, as shown.

H is a tension-rod engaging with the lugs G and L. It will at once be seen that the rod H serves to support the pipe D in proper position.

The buslle-pipe A, owing to its form, possesses acertain amount of elasticity-that is, a

force beingapplied downward at the lower end of the belly-pipe, (say at the joint E,) the bustle-pipe will be twisted slightly upon the axis of its bore, and will recover itself upon a removal or decrease of the force. The annular form of the bustle-pipe A prevents this twisting action from producing any damaging displacement of the bustle-pipe. It will thus be seen that with the tension-rod H of an unyielding length the belly-pipe is sustained by the bustle-pipe, and at the same time capable of a reasonable degree. of elasticity to allow for expansion and contraction. lower end of the belly-pipe, with the tuyerepipe, is held toward the furnace with an elastic pressure, the bustle-pipe itself acting as a torsional spring.

The rod H is adjustable in length by means of the screw 0 or the nut I. The sustaining pressure can thus be'adj usted. There is a joint, N, in the rod H, bymeans of which the lower portion, P, of the rod may be disengaged from the lug L when the structure is to be disconnected from the furnace. A spring, J, at the upper end of the rod H, as shown, endows the rod with tensional elasticity. This spring serves to supplement the bustle-pipe in its functions as a twisting-spring. 'The inclined position of the belly-pipe D permits this pipe to automatically swing into a vertical position, out of the way, when the maintaining devices are disengaged.

Pipes having no swing-joints must be disconnected entirely from the bustle-pipe when disconnected from the furnace, and jointed bellypipes occupying a vertical position when in use must needs be secured back out of the way when they are to be disengaged from the furnace.

I claim as my invention- 1. The combination, with bustle-pipe A, be]- ly-pipe D,joint F, and tuyere-pipe O, of the rod H, attached to the bustle-pipe and bellypipe, substantially as and for the purpose set forth.

2. The combination, with bustle-pipe A,belly-pipe D, joint F, and tuyere-pipe O, of the rod H and spring J, substantially as and for the purpose set forth.

3. Thecombination, with bustle-pipe A,bel-' ly-pipe D, 'oint F, and tuyere-pipe G, of the tension-rod H, having flexible joint N, substantially as and for the purpose set forth.

4. The combination, with bustle-pipe A, ball- In short, the

J joints F and E, and tuyerc-pipe O, of the belsustained by its attachments to the bustlely-pipe D, arranged at an inclination, and the pipe, independent of the furnace,substantially [0 rod H or equivalent device for maintaining the as and for the purpose set forth. parts in position, substantially as and for the 1 5 purpose Set forth FRED. W. GORDON.

5. The combination, with a bustle-pipe, of a Witnesses: blow-pipe projecting downward and inward JAMES A. MGKEAN, from the bustle-pipe towald the furnace, and J. P. WITHEROW. 

